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From: Andy Lutomirski <luto@kernel.org>
Date: Thu, 11 Jan 2018 18:20:13 -0800
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Subject: Re: [PATCH 1/5] x86/ibrs: Introduce native_rdmsrl, and native_wrmsrl
To: "Raj, Ashok" <ashok.raj@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Tim Chen <tim.c.chen@linux.intel.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Greg KH <gregkh@linuxfoundation.org>,
        Dave Hansen <dave.hansen@intel.com>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Andi Kleen <ak@linux.intel.com>,
        Arjan Van De Ven <arjan.van.de.ven@intel.com>,
        David Woodhouse <dwmw@amazon.co.uk>,
        Peter Zijlstra <peterz@infradead.org>,
        Dan Williams <dan.j.williams@intel.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Jun Nakajima <jun.nakajima@intel.com>,
        Asit Mallick <asit.k.mallick@intel.com>
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On Thu, Jan 11, 2018 at 5:52 PM, Raj, Ashok <ashok.raj@intel.com> wrote:
> On Thu, Jan 11, 2018 at 05:41:34PM -0800, Andy Lutomirski wrote:
>> On Thu, Jan 11, 2018 at 5:32 PM, Ashok Raj <ashok.raj@intel.com> wrote:
>> > - Remove including microcode.h, and use native macros from asm/msr.h
>> > - added license header for spec_ctrl.c
>> >
>> > Signed-off-by: Ashok Raj <ashok.raj@intel.com>
>
> [snip]
>> > +static inline u64 native_rdmsrl(unsigned int msr)
>> > +{
>> > +       u64 val;
>> > +
>> > +       val = __rdmsr(msr);
>> > +
>> > +       return val;
>> > +}
>>
>> What's wrong with native_read_msr()?
>
> Yes, i think i should have added to msr.h. The names didn't read as a
> pair, one was native_read_msr, wrmsrl could be taken over when paravirt is
> defined?

Why do you need to override paravirt?